| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Magnetite | 1 |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Puy de Wolf (Puech de Voll), Firmi, Villefranche-de-Rouergue, Aveyron, Occitanie, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 269461 |
| Long-form Identifier: | 1:3:269461:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 13.5km (8.4 miles) | ⓘLe Kaymar, Pruines, Rodez, Aveyron, Occitanie, France |
| 77.9km (48.4 miles) | ⓘFaverolles quarry, Val-d'Arcomie, Saint-Flour, Cantal, Auvergne-Rhône-Alpes, France |
| 83.5km (51.9 miles) | ⓘClavières d'Outre, Val-d'Arcomie, Saint-Flour, Cantal, Auvergne-Rhône-Alpes, France |
| 83.8km (52.1 miles) | ⓘRoca Negra, Roquefort-sur-Soulzon, Millau, Aveyron, Occitanie, France |
| 86.1km (53.5 miles) | ⓘPuy de Menoyre, Menet, Mauriac, Cantal, Auvergne-Rhône-Alpes, France |
| 88.0km (54.7 miles) | ⓘLa Caravantié quarry, Peyrebrune, Montredon-Labessonnié, Castres, Tarn, Occitanie, France |
| 98.1km (61.0 miles) | ⓘMoulergues, Chastel, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France |
| References |
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Puy de Wolf, Firmi, Villefranche-de-Rouergue, Aveyron, Occitanie, France